>tr|A0A2S8E1S9|A0A2S8E1S9_SHIDY Aspartate carbamoyltransferase regulatory chain OS=Shigella dysenteriae GN=pyrI MTHDNKLQVEAIKRGTVIDHIPAQIGFKLLSLFKLTETDQRITIGLNLPSGEMGRKDLIK IENTFLSEDQVDQLALYAPQATVNRIDNYEVVGKSRPSLPERIDNVLVCPNSNCISHAEP VSSSFAVRKRANDIALKCKYCEKEFSHNVVLAN